Subject: Re: maelstrom back on line with 1 gig memory
From: Markus Mock (mock@cs.washington.edu)
Date: Sat Oct 14 2000 - 14:16:23 PDT
More swap would just give the system the resources to swap out other
applications resident at the same time (editors, shells) so that Calpa (or
other memory hogs) can take full use of the 1GB RAM. 1GB swap might be
enough, but I remember from configuring a Linux box that it is generally
advised to set swap size to 2-4 times of RAM size.
-- Markus
On Fri, 13 Oct 2000, Craig Chambers wrote:
> I don't think we want that much VM. The purpose of increasing RAM was to avoid
> thrashing on programs with big working sets (like some parts of Calpa).
> Increasing VM size will allow bigger jobs, but those will begin to thrash
> again. I didn't think VM size was the bottleneck, thrashing was. We can, and
> eventually (e.g. when I return) increase VM size (is that the same as swap
> space? I thought it was, but now I'm not so sure), but I don't think it's your
> current bottleneck.
>
> -- Craig
>
>
> Markus Mock wrote:
> >
> > Great!
> >
> > One more thing though: virtual memory is just 1.4GB. I thought, generally
> > a ratio of 1:4 to 1:8 is advised. Do we have resources to increase VM as
> > well?
> >
> > -- Markus
> >
> > On Fri, 13 Oct 2000 patric@cs.washington.edu wrote:
> >
> > >
> > > Server 'maelstrom' is back online and now has 1 gig RAM. I'm finished
> > > with it for a while (forever, if I'm lucky). Please let me know if you
> > > experience any trouble with it.
> > >
> > > thanks,
> > > patric
> > >
> > > --
> > > Patric L. Rogers
> > > Systems Lab Manager
> > > email: patric@cs.washington.edu
> > > phone: 206.685.1964
> > > "Save a tree, turn off your monitor at night;
> > > save a forest, turn off your computer."
> > >
> > >
>
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